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Finding the Fourth Proportional to 8,285.96, 12,428.95 and 6,822.04

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Solution

The fourth proportional to 8,285.96, 12,428.95 and 6,822.04 is: 10,233.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,285.96 : 12,428.95 = 6,822.04 : x
  2. Step 2: Convert to fraction form
    8,285.96/12,428.95 = 6,822.04/x
  3. Step 3: Cross multiply
    8,285.96x = 12,428.95 × 6,822.04
  4. Step 4: Simplify right side
    8,285.96x = 84,790,794.06
  5. Step 5: Solve for x
    x = 84,790,794.06/8,285.96
  6. Step 6: Final answer
    x = 10,233.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.